It's going well! Most of the team is eager to learn something new. The developer ergonomics in Elixir/Phoenix are quite a bit better than Ruby/Rails, which is really saying something because Ruby/Rails has been really great to us!

We're starting new projects in Elixir. We haven't ported anything from Ruby to Elixir yet, but we have a 9 year old ~100k lines of code (not counting views/tests) Rails app that we could make an argument to extract some functionality from.